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Section 5
Checking and Adding
Coolant to Intercooler
System (CTS-V Model Only)
NOTICE
The intercooler system on the
6.2L V8 engine has a specific
coolant fill procedure. Failure to
follow this procedure may
result in the engine overheating
and in severe engine damage.
Turn off the ignition and let the
engine compartment cool down.
The intercooler coolant fill bottle is
located in the engine compart-
ment on the passenger side of the
vehicle.
If coolant is visible but the coolant
level is not at or above the COLD
FILL mark, wait a while for the
engine to cool, then add a 50/50
mixture of clean, drinkable water
and DEX-COOL® coolant at the
coolant fill bottle. See "Engine
Coolant" in the "Service and
Maintenance" section.
If the engine is warm or hot, the
coolant level should be at or above
the COLD FILL line on the side of
the coolant fill bottle.
If the engine is cold, the coolant
level should be near the COLD
FILL line on the side of the coolant
fill bottle. If it is not, you could
have a leak in the cooling system.
CAUTION
Steam and scalding liquids from
a hot cooling system can blow
out and burn you badly. Never
turn the cap when the engine
and cooling system are hot.
AKENG40_CTS Page 479 Wednesday, July 23, 2008 11:47 AM
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